After her rebirth, the female protagonist began to investigate the cause of her death and found that her husband in her previous life was actually her grandfather, and her grandfather was a figure in the underworld. During the investigation, the female protagonist gradually learned some differences between her previous life and this life, including her family and background. The female protagonist decided to use her rebirth ability to get rid of the shadow of her previous life and find the truth in this life. After some hard work, the female protagonist finally discovered the truth and successfully helped her grandfather get rid of the shackles of evil forces. In the end, the heroine found a balance between the underworld and the underworld, bringing new hope to the world.